Can't pip install torch

Question

I was trying to pip install stanza and got this message:

ERROR: No matching distribution found for torch>=1.3.0 (from stanza)

I then ran pip install torch and got the following (the website won't let me include too much code, so here's the full error )

  ERROR: Command errored out with exit status 1:
   command: 'c:\python\python37\python.exe' ... ...
  ...  ...
  Traceback (most recent call last):
    ... ...
    File "C:\Users\borka\AppData\Local\Temp\pip-install-10i7vgad\torch\setup.py", line 51, in run
      from tools.nnwrap import generate_wrappers as generate_nn_wrappers
  ModuleNotFoundError: No module named 'tools.nnwrap'
  ----------------------------------------
  ERROR: Failed building wheel for torch
  ERROR: Command errored out with exit status 1:
   command: 'c:\python\python37\python.exe' ... ...
       cwd: C:\Users\borka\AppData\Local\Temp\pip-install-10i7vgad\torch
  Complete output (2 lines):
  running clean
  error: [Errno 2] No such file or directory: '.gitignore'
  ----------------------------------------
  ERROR: Failed cleaning build dir for torch
DEPRECATION: Could not build wheels for torch which do not use PEP 517. pip will fall back to legacy 'setup.py install' for these. pip 21.0 will remove support for this functionality. A possible replacement is to fix the wheel build issue reported above. You can find discussion regarding this at https://github.com/pypa/pip/issues/8368.
    ERROR: Command errored out with exit status 1:
     command: 'c:\python\python37\python.exe' ... ...
    Traceback (most recent call last):
    ... ...
      File "C:\Users\borka\AppData\Local\Temp\pip-install-10i7vgad\torch\setup.py", line 51, in run
        from tools.nnwrap import generate_wrappers as generate_nn_wrappers
    ModuleNotFoundError: No module named 'tools.nnwrap'
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\python\python37\python.exe' ... ... Check the logs for full command output.

Answer 1

I can see that you have a Windows machine, so from this official pytorch website, you can build the command that the best for your requirements and system, try this

pip install torch===1.6.0 torchvision===0.7.0 -f https://download.pytorch.org/whl/torch_stable.html

And here , all of the torch packages are located, both Windows, MacOS, and Linux

Answer 2

I came across the same error and realized that Python 3.9 is not supported by Pytorch yet. I created another virtual environment with Python 3.7 and the installation worked.